This article takes one practical thread from Fabiano Amorim’s broader SQL Server security research: how apparently normal permissions and routine maintenance can become an attack path. The goal is not to walk through a full proof of concept, but to help DBAs answer a more useful production question: how do I know whether my SQL Server instances are exposed to this kind of risk?
The article covers four connected areas: over-privileged database users, msdb and SQL Server Agent exposure, privileged maintenance jobs, and trigger-based permission hijacking.
For each area, we will look at why the risk exists, what signs a DBA should look